I can't say that I didn't enjoy myself, but I also can't say that I'm entirely satisfied with this series.
The premise is good, and I actually thought that the pacing wasn't bad at all. It's an obvious slow burn and I was already expecting to wait for the two main characters to actually get somewhere with their feelings. The mystery around Yu Zhen is what drives the plot for the most part, and Shi Lei slowly unveiling it kept me engaged. Still, I feel like there were elements in the plot that were set aside in favor of others that were less interesting. Some things were introduced and not explained, some other things were introduced and explained but also discussed so thoroughly that it got kind of annoying. I'm being vague because I don't want to spoil anything, but I believe that it could have felt much more satisfied if the story was more coherent with its message and its various elements.

The main couple is very good. I believe that both actors did a pretty good job and there are specific moments that really let their acting shine bright. Their chemistry is also pretty good - I had my doubts at first, but they fit with each other quite well.
As for the second couple, unfortunately I can't say much about them. They are cute, both individually and together, but there's little to nothing about them. Nothing happens in their romance either, it was just a straight line with no events, so they were one of the least interesting parts of the series to me.
The supporting characters were all quite good. I wish Xiao Qian and Wang Jing were shown some more, especially since the dating ban affected them the most out of all the characters. As for Yi Zi Tong, to be entirely honest I think he had way more screentime than what was actually necessary.

The montage was good, but there was nothing especially interesting about the way the scenes were filmed. The music did its job well most of the time, but there were also many times when the songs played felt completely out of place and even stopped me from enjoying the scene, especially when the song played too loudly and out of nowhere.

Overall, I can say that it was mostly a cute and enjoyable series, but I can't help feeling mildly disappointed about it too. Watch at your own risk.